Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Black Rock, Leucite Hills Mining District, Sweetwater Co., Wyoming, USA

Oldest recorded age at locality: 1.1
Youngest recorded age at locality: 0.9

mindat Locality ID: 171665
mindat URL: http://www.mindat.org/loc-171665.html

Tectonic Settings:

Total number of sublocalities beneath "Black Rock, Leucite Hills Mining District, Sweetwater Co., Wyoming, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 41°52'26"N
Longitude: 108°47'43"W
Decimal Degree (lat, lon): 41.873888888889,-108.79527777778

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Amphibole	Analcime	Clay	Coronadite	Mica	None	Olivine	Pyroxene	Rutile

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Ca F Fe H K Mg Na O Si Ti

Elements from minerals reported directly at this locality: Al Ca F Fe H K Mg Na O Si Ti

Structural Groups for minerals in this locality:
Amphibole Analcime Clay Coronadite Mica None Olivine Pyroxene Rutile

7 IMA Minerals at location:

Diopside ()*	Forsterite ()*	Leucite ()*	Phlogopite ()*	Potassic-fluoro-richterite ()*
Priderite ()*	Rutile ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Diopside ()*	Pyroxene	CaMgSi₂O₆	1.1	0.9	4135
Forsterite ()*	Olivine	Mg₂(SiO₄)	1.1	0.9	1188
Leucite ()*	Analcime	K(AlSi₂O₆)	1.1	0.9	233
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	1.1	0.9	2273
Potassic-fluoro-richterite ()*	Amphibole	K(NaCa)Mg₅Si₈O₂₂F₂	1.1	0.9	11
Priderite ()*	Coronadite	K(Ti₇Fe³⁺)O₁₆	1.1	0.9	41
Rutile ()*	Rutile	TiO₂	1.1	0.9	5614

4 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Sample Num	MinDat Locality ID	Dated Locality (Max Age)	Reference	Reference ID
NAVDAT-6345	1.1	0.9	1±0.1	6345	171665	Black Rock, Leucite Hills Mining District, Sweetwater Co., Wyoming, USA	NAVDAT	NAVDAT
NAVDAT-6346	1.1	0.9	1±0.1	6346	171665	Black Rock, Leucite Hills Mining District, Sweetwater Co., Wyoming, USA	NAVDAT	NAVDAT
NAVDAT-6347	1.1	0.9	1±0.1	6347	171665	Black Rock, Leucite Hills Mining District, Sweetwater Co., Wyoming, USA	NAVDAT	NAVDAT
NAVDAT-6348	1.1	0.9	1±0.1	6348	171665	Black Rock, Leucite Hills Mining District, Sweetwater Co., Wyoming, USA	NAVDAT	NAVDAT

Sample	Source Locality	Reference URL
FKM-79	Black Rock, Leucite Hills Mining District, Sweetwater Co., Wyoming, USA	https://www.rockptx.com/fkm-76-to-fkm-100/#FKM-79

All locality data graciously provided by mindat.org

All age data...